Dr. Katrina Louise Johnson, MD

Dr. Johnson practices at University of Mississippi Medical Center in Jackson, Mississippi, part of Mississippi Institutions of Higher Learning.

Dr. Johnson's NPI, 1407343734, was assigned on April 23, 2018. Dr. Johnson graduated from University of Mississippi School of Medicine in 2018. Dr. Johnson holds Mississippi license T-3590.

Dr. Johnson's primary practice is University of Mississippi Medical Center, at 2500 N State St, Jackson, MS 39216 in Hinds County. The practice phone is (601) 984-4100.

Dr. Johnson's primary practice is University of Mississippi Medical Center in Jackson, Mississippi, part of Mississippi Institutions of Higher Learning. The medical group on file is University of Mississippi Medical Center. Dmand AI also links Dr. Johnson to 1 more behavioral health center, named with a free account. Dr. Johnson's employer is on file too: a hospital.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 2 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Johnson is licensed in Mississippi.

CMS data shows 655 Medicare services from Dr. Johnson across 5 procedure codes in 2024, for 180 Medicare patients. Medicare paid $52,537 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 180 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 69 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 56% are also on Medicaid. Their average risk score is 3.33, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 62, with 47% women.

In 2024, Dr. Johnson wrote 71 Medicare Part D claims for 32 patients. 92% of them were for generic drugs. CMS names the drug for 39 of them, across 3 drugs with 11 or more claims each, at $452 in total drug cost. In 2020, CMS named 34 claims across 2 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Johnson for performance year 2024, reported as part of a group. Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 61 general payments to Dr. Johnson from 11 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $216.

Dr. Johnson graduated from University of Mississippi School of Medicine in 2018.